Sir, We are a group of more than 100 doctors, including nearly 20 who work in intensive care units, who are increasingly alarmed at official inaction over the need for the public to wear homemade facemasks. High-grade masks worn as part of PPE protect the wearer from Covid-19 and help to prevent the spread of infection to others. However, ordinary homemade masks worn by the public protect other people, not the wearer. It says wear a mask to reduce the spread of infection if you become symptomatic, but what about asymptomatic spread? The latest guidance on PPE says that people should wear

Source: The Times April 17, 2020 22:52 UTC